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Systems and methods for tracking lumber in a sawmill

a technology of system and method, applied in the field of sawmills, can solve problems such as the mechanical system and/or scanning of the processing station

Active Publication Date: 2009-10-15
WEYERHAEUSER NR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]If the auditing computer is in communication with the computer optimizers described above, the auditing computer can then automatically compare the actual geometry of each piece of lumber with the geometry expected by the computer optimizer. Differences might indicate problems in the scanning and / or mechanical systems of a processing station. The auditing computer might also perform its own, post-processing optimization and compare the actual geometry of each piece of lumber with the geometry the auditing computer would have expected based on its optimization algorithm. Differences might be indicative of problems in the scanning, mechanical and / or optimization systems of a processing station. Thus, the auditing computer can provide fast, immediate feedback to each processing station on the processing station's individual performance. This feedback may be used by sawmill personnel to take corrective action (e.g., to resolve a mechanical issue) or may be used to update the algorithms used by the computer optimizers.

Problems solved by technology

Differences might indicate problems in the scanning and / or mechanical systems of a processing station.
Differences might be indicative of problems in the scanning, mechanical and / or optimization systems of a processing station.

Method used

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  • Systems and methods for tracking lumber in a sawmill
  • Systems and methods for tracking lumber in a sawmill
  • Systems and methods for tracking lumber in a sawmill

Examples

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Embodiment Construction

[0043]In the following description, certain specific details are set forth in order to provide a thorough understanding of various disclosed embodiments. However, one skilled in the relevant art will recognize that embodiments may be practiced without one or more of these specific details, or with other methods, components, materials, etc. In other instances, well-known structures associated with sawmills, bucking and merchandizing processes, primary breakdown machines, gangsaws, edgers, trimmers, saws, computing devices, imaging systems and / or laser scanners have not been shown or described in detail to avoid unnecessarily obscuring descriptions of the embodiments.

[0044]Unless the context requires otherwise, throughout the specification and claims which follow, the word “comprise” and variations thereof, such as, “comprises” and “comprising” are to be construed in an open, inclusive sense, that is, as “including, but not limited to.”

[0045]Reference throughout this specification to ...

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PUM

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Abstract

At least one geometric characteristic for each of a number of pieces of lumber is determined. Each of the pieces of lumber may then be logically associated with at least one of a log or a cant from which the piece of lumber was sawn.

Description

CROSS-REFERENCE(S) TO RELATED APPLICATION(S)[0001]This application is a continuation-in-part of U.S. patent application Ser. No. 11 / 873,090, filed Oct. 16, 2007, now pending, which application is incorporated herein by reference in its entirety.BACKGROUND[0002]1. Technical Field[0003]This description generally relates to sawmills, and more particularly to tracking lumber through a sawmill.[0004]2. Description of the Related Art[0005]The sawmill industry has become largely automated. Full length tree trunks are delivered to sawmills, where they are automatically debarked, scanned and cut into log segments based on their scanned geometry. These log segments are then typically processed at a number of automated stations, depending on the sawmill and the type of wood. These processing stations produce lumber from each log segment, often without any human intervention.[0006]One of the first processing stations in many sawmills is the primary breakdown machine, which processes log segment...

Claims

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Application Information

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IPC IPC(8): B23Q7/00B23Q17/20G06F19/00
CPCB23D59/008B23Q17/20G06Q20/208G06Q10/087B27B31/06Y10T83/145
Inventor BARKER, EARL
Owner WEYERHAEUSER NR CO
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